:group 'gnus-fun
:type 'directory)
-(defcustom gnus-convert-pbm-to-x-face-command "pbmtoxbm '%s' | compface"
+(defcustom gnus-convert-pbm-to-x-face-command "pbmtoxbm %s | compface"
"Command for converting a PBM to an X-Face."
:group 'gnus-fun
:type 'string)
-(defcustom gnus-convert-image-to-x-face-command "giftopnm '%s' | ppmnorm 2>/dev/null | pnmscale -width 48 -height 48 | ppmtopgm | pgmtopbm | pbmtoxbm | compface"
- "Command for converting a GIF to an X-Face."
+(defcustom gnus-convert-image-to-x-face-command "giftopnm %s | ppmnorm | pnmscale -width 48 -height 48 | ppmtopgm | pgmtopbm | pbmtoxbm | compface"
+ "Command for converting an image to an X-Face."
:group 'gnus-fun
:type 'string)
+(defcustom gnus-convert-image-to-face-command "djpeg %s | ppmnorm | pnmscale -width 48 -height 48 | ppmquant %d | pnmtopng"
+ "Command for converting an image to an X-Face."
+ :group 'gnus-fun
+ :type 'string)
+
+(defun gnus-shell-command-to-string (command)
+ "Like `shell-command-to-string' except not mingling ERROR."
+ (with-output-to-string
+ (call-process shell-file-name nil (list standard-output nil)
+ nil shell-command-switch command)))
+
+(defun gnus-shell-command-on-region (start end command)
+ "A simplified `shell-command-on-region'.
+Output to the current buffer, replace text, and don't mingle error."
+ (call-process-region start end shell-file-name t
+ (list (current-buffer) nil)
+ nil shell-command-switch command))
+
;;;###autoload
(defun gnus-random-x-face ()
- "Insert a random X-Face header from `gnus-x-face-directory'."
+ "Return X-Face header data chosen randomly from `gnus-x-face-directory'."
(interactive)
(when (file-exists-p gnus-x-face-directory)
(let* ((files (directory-files gnus-x-face-directory t "\\.pbm$"))
(file (nth (random (length files)) files)))
(when file
- (shell-command-to-string
- (format gnus-convert-pbm-to-x-face-command file))))))
+ (gnus-shell-command-to-string
+ (format gnus-convert-pbm-to-x-face-command
+ (shell-quote-argument file)))))))
+
+;;;###autoload
+(defun gnus-insert-random-x-face-header ()
+ "Insert a random X-Face header from `gnus-x-face-directory'."
+ (interactive)
+ (let ((data (gnus-random-x-face)))
+ (save-excursion
+ (message-goto-eoh)
+ (if data
+ (insert "X-Face: " data)
+ (message
+ "No face returned by `gnus-random-x-face'. Does %s/*.pbm exist?"
+ gnus-x-face-directory)))))
;;;###autoload
(defun gnus-x-face-from-file (file)
"Insert an X-Face header based on an image file."
- (interactive "fImage file name:" )
+ (interactive "fImage file name: ")
+ (when (file-exists-p file)
+ (gnus-shell-command-to-string
+ (format gnus-convert-image-to-x-face-command
+ (shell-quote-argument (expand-file-name file))))))
+
+;;;###autoload
+(defun gnus-face-from-file (file)
+ "Return an Face header based on an image file."
+ (interactive "fImage file name: ")
(when (file-exists-p file)
- (shell-command-to-string
- (format gnus-convert-image-to-x-face-command file))))
-
+ (let ((done nil)
+ (attempt "")
+ (step 72)
+ (quant 16))
+ (while (and (not done)
+ (> quant 1))
+ (setq attempt
+ (gnus-shell-command-to-string
+ (format gnus-convert-image-to-face-command
+ (shell-quote-argument (expand-file-name file))
+ quant)))
+ (if (> (length attempt) 740)
+ (progn
+ (setq quant (- quant 2))
+ (message "Length %d; trying quant %d"
+ (length attempt) quant))
+ (setq done t)))
+ (if done
+ (mm-with-unibyte-buffer
+ (insert attempt)
+ (base64-encode-region (point-min) (point-max))
+ (goto-char (point-min))
+ (while (search-forward "\n" nil t)
+ (replace-match ""))
+ (goto-char (point-min))
+ (while (> (- (point-max) (point))
+ step)
+ (forward-char step)
+ (insert "\n ")
+ (setq step 76))
+ (buffer-string))
+ nil))))
+
+;;;###autoload
+(defun gnus-convert-face-to-png (face)
+ (mm-with-unibyte-buffer
+ (insert face)
+ (ignore-errors
+ (base64-decode-region (point-min) (point-max)))
+ (buffer-string)))
+
+(defun gnus-convert-image-to-gray-x-face (file depth)
+ (let* ((mapfile (mm-make-temp-file (expand-file-name "gnus."
+ mm-tmp-directory)))
+ (levels (expt 2 depth))
+ (step (/ 255 (1- levels)))
+ color-alist bits bits-list mask pixel x-faces)
+ (with-temp-file mapfile
+ (insert "P3\n")
+ (insert (format "%d 1\n" levels))
+ (insert "255\n")
+ (dotimes (i levels)
+ (insert (format "%d %d %d\n"
+ (* step i) (* step i) (* step i)))
+ (push (cons (* step i) i) color-alist)))
+ (when (file-exists-p file)
+ (with-temp-buffer
+ (insert (gnus-shell-command-to-string
+ (format "giftopnm %s | ppmnorm | pnmscale -width 48 -height 48 | ppmquant -fs -map %s | ppmtopgm | pnmnoraw"
+ (shell-quote-argument file)
+ mapfile)))
+ (goto-char (point-min))
+ (forward-line 3)
+ (while (setq pixel (ignore-errors (read (current-buffer))))
+ (push (cdr (assq pixel color-alist)) bits-list))
+ (setq bits-list (nreverse bits-list))
+ (dotimes (bit-number depth)
+ (setq mask (expt 2 bit-number))
+ (with-temp-buffer
+ (insert "P1\n48 48\n")
+ (dolist (bits bits-list)
+ (insert (if (zerop (logand bits mask)) "0 " "1 ")))
+ (gnus-shell-command-on-region
+ (point-min) (point-max)
+ ;; the following is taken from xbmtoikon:
+ "pbmtoicon | sed '/^[ ]*[*\\\\/]/d; s/[ ]//g; s/,$//' | tr , '\\012' | sed 's/^0x//; s/^/0x/' | pr -l1 -t -w22 -3 -s, | sed 's/,*$/,/' | compface")
+ (push (buffer-string) x-faces))))
+ (dotimes (i (length x-faces))
+ (insert (if (zerop i) "X-Face:" (format "X-Face-%s:" i))
+ (nth i x-faces))))
+ (delete-file mapfile)))
+
+;;;###autoload
+(defun gnus-convert-gray-x-face-to-xpm (faces)
+ (let* ((depth (length faces))
+ (scale (/ 255 (1- (expt 2 depth))))
+ (ok-p t)
+ (coding-system-for-read 'binary)
+ (coding-system-for-write 'binary)
+ default-enable-multibyte-characters
+ start bit-array bit-arrays pixel)
+ (with-temp-buffer
+ (dolist (face faces)
+ (erase-buffer)
+ (insert (uncompface face))
+ (gnus-shell-command-on-region
+ (point-min) (point-max)
+ "pnmnoraw")
+ (goto-char (point-min))
+ (forward-line 2)
+ (setq start (point))
+ (insert "[")
+ (while (not (eobp))
+ (forward-char 1)
+ (insert " "))
+ (insert "]")
+ (goto-char start)
+ (setq bit-array (read (current-buffer)))
+ (unless (= (length bit-array) (* 48 48))
+ (setq ok-p nil))
+ (push bit-array bit-arrays))
+ (when ok-p
+ (erase-buffer)
+ (insert "P2\n48 48\n255\n")
+ (dotimes (i (* 48 48))
+ (setq pixel 0)
+ (dotimes (plane depth)
+ (setq pixel (+ (* pixel 2) (aref (nth plane bit-arrays) i))))
+ (insert (number-to-string (* scale pixel)) " "))
+ (gnus-shell-command-on-region
+ (point-min) (point-max)
+ "ppmtoxpm")
+ (buffer-string)))))
+
+;;;###autoload
+(defun gnus-convert-gray-x-face-region (beg end)
+ "Convert the X-Faces in region to a PPM file."
+ (interactive "r")
+ (let ((input (buffer-substring beg end))
+ faces)
+ (with-temp-buffer
+ (insert input)
+ (goto-char (point-min))
+ (while (not (eobp))
+ (save-restriction
+ (mail-header-narrow-to-field)
+ (push (mail-header-field-value) faces)
+ (goto-char (point-max)))))
+ (gnus-convert-gray-x-face-to-xpm faces)))
+
+(defface gnus-x-face '((t (:foreground "black" :background "white")))
+ "Face to show X-Face.
+The colors from this face are used as the foreground and background
+colors of the displayed X-Faces."
+ :group 'gnus-article-headers)
+
+(defun gnus-display-x-face-in-from (data)
+ "Display the X-Face DATA in the From header."
+ (let ((default-enable-multibyte-characters nil)
+ pbm)
+ (when (or (gnus-image-type-available-p 'xface)
+ (and (gnus-image-type-available-p 'pbm)
+ (setq pbm (uncompface data))))
+ (save-excursion
+ (save-restriction
+ (article-narrow-to-head)
+ (gnus-article-goto-header "from")
+ (when (bobp)
+ (insert "From: [no `from' set]\n")
+ (forward-char -17))
+ (gnus-add-image
+ 'xface
+ (gnus-put-image
+ (if (gnus-image-type-available-p 'xface)
+ (gnus-create-image
+ (concat "X-Face: " data)
+ 'xface t :ascent 'center :face 'gnus-x-face)
+ (gnus-create-image
+ pbm 'pbm t :ascent 'center :face 'gnus-x-face))))
+ (gnus-add-wash-type 'xface))))))
+
+(defun gnus-grab-cam-x-face ()
+ "Grab a picture off the camera and make it into an X-Face."
+ (interactive)
+ (shell-command "xawtv-remote snap ppm")
+ (let ((file nil))
+ (while (null (setq file (directory-files "/tftpboot/sparky/tmp"
+ t "snap.*ppm")))
+ (sleep-for 1))
+ (setq file (car file))
+ (with-temp-buffer
+ (shell-command
+ (format "pnmcut -left 110 -top 30 -width 144 -height 144 '%s' | ppmnorm 2>/dev/null | pnmscale -width 48 | ppmtopgm | pgmtopbm -threshold -value 0.92 | pbmtoxbm | compface"
+ file)
+ (current-buffer))
+ ;;(sleep-for 3)
+ (delete-file file)
+ (buffer-string))))
+
+(defun gnus-grab-gray-x-face ()
+ "Grab a picture off the camera and make it into an X-Face."
+ (interactive)
+ (shell-command "xawtv-remote snap ppm")
+ (let ((file nil))
+ (while (null (setq file (directory-files "/tftpboot/sparky/tmp"
+ t "snap.*ppm")))
+ (sleep-for 1))
+ (setq file (car file))
+ (with-temp-buffer
+ (shell-command
+ (format "pnmcut -left 70 -top 100 -width 144 -height 144 '%s' | ppmquant 256 2>/dev/null | ppmtogif > '%s.gif'"
+ file file)
+ (current-buffer))
+ (delete-file file))
+ (gnus-convert-image-to-gray-x-face (concat file ".gif") 3)
+ (delete-file (concat file ".gif"))))
(provide 'gnus-fun)
projects / gnus / blobdiff